1.Antibody titers in the Wonju residents to rickettsia Tsutsugamushi.
Inho CHANG ; yunsop CHONG ; Kapjun YUN ; Hyung Hoan LEE
Journal of the Korean Society for Microbiology 1991;26(3):279-288
No abstract available.
Gangwon-do*
;
Orientia tsutsugamushi*
;
Rickettsia*
2.Surgical resection of heterotopic ossification in the brain-injured.
Dae Yong HAN ; Chong Hyuk CHOI ; Yun Tae LEE
The Journal of the Korean Orthopaedic Association 1993;28(5):1836-1841
No abstract available.
Ossification, Heterotopic*
3.Production of Superoxide Anion and Damage of Mitochondria Isolated from Ischemic Repertused Heart.
Chong Yun RIM ; Young LEE ; Yun Song LEE ; Myung Suk KIM
Korean Circulation Journal 1991;21(6):1137-1151
BACKGROUND: Oxygen free radicals have been implicated as a cause of deleterious effects in the setting of coronary reperfusion, and they are believed to be generated by the xanthine oxidase system, from activated neutrophiles and from mitochondria. We evaluate the contribution of mitochondria to the production of oxygen free radicals and clarify the mechanism of cellular damage in ischemic reperfused hearts. METHODS: Mitochondria isolated from the ischemic rabbit hearts were incubated in the reaction conditions with different oxygen tensions. Generation of superoxide anion and activities of defensive enzymes aginst oxidative stress were mesured. RESULTS: Superoxide anion genertion by mitochondria incubated in 21% oxygen condition were 0.54+/-0.09 and 0.27+/-0.04(O2./min/mg protein) in ischemic mitochondria and in control respectively(P<0.05). Activites of defensive enzymes against oxidative stress, superoxide dismutase and glutathione peroxidase, were significantly reduced in mitochondria isolated from either ischemic or reperfused hearts. With the lapse of respiration in 21% oxygen condition, ADP-stimulated state 3 oxygen consumption(306.4+/-31.5 vs 214.4+/-11.4n atoms O/min/mg protein) at 30 minutes, P : O ratio and phosphorylation rate were significantly decreased in ischemic mitochondria. CONCLUSION: Elevation of oxygen free radical generation as well as the reduction of defensive enzyme activities in ischemic reperfused mitochondria are injurious to mitochondrial respiratory function. It may contribute to the mechanism of cellular damage in ischemic reperfused hearts.
Free Radicals
;
Glutathione Peroxidase
;
Heart*
;
Mitochondria*
;
Myocardial Reperfusion
;
Neutrophils
;
Oxidative Stress
;
Oxygen
;
Phosphorylation
;
Respiration
;
Superoxide Dismutase
;
Superoxides*
;
Xanthine Oxidase
4.Clinical analysis on fetal and neonatal arrhythmia.
Young Ah LEE ; Chung Il NOH ; Jung Hwan CHOI ; Jung Yun CHOI ; Yong Soo YUN ; Chong Ku YUN
Journal of the Korean Pediatric Society 1991;34(4):507-514
No abstract available.
Arrhythmias, Cardiac*
5.A Case of Renal Tuberculosis in a Child.
Min Young CHA ; Se Yun EUN ; Chong Guk LEE ; Sang Il LEE ; Sang Woo KIM
Journal of the Korean Pediatric Society 1984;27(7):733-737
No abstract available.
Child*
;
Humans
;
Tuberculosis, Renal*
6.Prevalence of antibodies to the coxiella burnetii phase II antigen among residents in korea.
Sang Nae CHO ; Sun Hee BAEK ; Yun Sop CHONG ; Joo Deuk KIM ; Won Young LEE
Journal of the Korean Society for Microbiology 1993;28(3):223-228
No abstract available.
Antibodies*
;
Coxiella burnetii*
;
Coxiella*
;
Korea*
;
Prevalence*
8.Ventricular Extrasystoles in Convalescent Phase of Acute Myocardial Infarction.
Kyung Pyo HONG ; Chong Yun RIM ; Young Bahk KOH ; Young LEE
Korean Circulation Journal 1987;17(1):49-54
Ventricular arrhythmia and left ventricular dysfunction after hospital discharge in acute myocardial infarction are powerful predictors of sudden death. We evaluated the ventricular extrasystoles with 24 hour ambulatory electrocardiography at convalescent phase in 34 patients of acute myocardial infarction. Ventricular extrasystoles were observed in 19 patients (56%) and classified by Lown's grading system as grade 1 for 8 cases, grade 2 for 3 cases, grade 3 for 3 cases, grade 4 for 3 cases, and grade 5 for 2 cases. There was no relation between the develoment of ventricular extrasytoles and the risk factors of ischemic heart discase such as smoking, hypertension, hyperlipidemia, diabetes mellitus, and male sex. Also, the development of ventricular extrasystoles was independent to infarct site, regional wall motion abnormalities, and clinical manifestations of left ventricular dysfunction such as congestive heart failure and cardiomegaly. In conclusion, ventricular arrhythmia might independently predict the prognosis in survivors of acute myocardial infarction.
Arrhythmias, Cardiac
;
Cardiomegaly
;
Chymopapain
;
Death, Sudden
;
Diabetes Mellitus
;
Electrocardiography, Ambulatory
;
Heart
;
Heart Failure
;
Humans
;
Hyperlipidemias
;
Hypertension
;
Male
;
Myocardial Infarction*
;
Prognosis
;
Risk Factors
;
Smoke
;
Smoking
;
Survivors
;
Ventricular Dysfunction, Left
;
Ventricular Premature Complexes*
9.A Case of Hepatitis B Virus Associated Nephropathy.
Tae Nyeun KIM ; Young Gon LEE ; Kyeung Woo YUN ; Chong Suhi KIM
Yeungnam University Journal of Medicine 1986;3(1):325-332
Since Combes' first description of hepatitis B virus associated membranous glomerulonephritis, many reports have shown a strong association of hepatitis B virus infection with various types of nephropathies, especially membranous glomerulonephritis and membranoproliferative glomerulonephritis. Recently, the authors experienced a case of membranoproliferative glomerulonephritis, type I in a 16-year-old male patient with persistent HBs and HBe antigenemia. One year prior to admission the patient was told of hepatitis at routine check, but he remained asymptomatic throughout. He was admitted to our hospital with chief complaints of proteinuria and microscopic hematuria found on routine urinalysis. Liver and kidney biopsy revealed chronic persistent hepatitis and membranoproliferative glomerulonephritis type I, respectively. We report a case of hepatitis B virus associated nephropathy with review of the literatures. Considering the endemic nature of hepatitis B virus infection in Korea, the incidence of hepatitis B virus associated nephropathy would be proportionally high in comparison with those of other countries. So, the importance of this entity merits special consideration in our country. Further study concerning pathogenesis, epidemiology, and treatment may be needed.
Adolescent
;
Biopsy
;
Epidemiology
;
Glomerulonephritis, Membranoproliferative
;
Glomerulonephritis, Membranous
;
Hematuria
;
Hepatitis B virus*
;
Hepatitis B*
;
Hepatitis*
;
Hepatitis, Chronic
;
Humans
;
Incidence
;
Kidney
;
Korea
;
Liver
;
Male
;
Proteinuria
;
Urinalysis
10.Effect of the phototherapy on intestinal transit time in jaundiced newborns.
Journal of the Korean Pediatric Society 1977;20(1):54-56
It is well-known that the course of phototherapy, stool colour changes from yellow to green. The occurrence of frequent loose green stools, commencing a few hours after the beginning of treatment, has been observed in several different centers. In order to elucidate the machanism by which phototherapy induces loose stools in newborns, studies were perforned on the speed of intestinal transit by performing the carmine red ftest on 15fullterm newborns, 15jaundiced newborns before and after phototherapy and 15 healthy newborns exposed to phototherapy. The following results were obtained. 1) Intestinal transit time in 15 full term newborns was 12.75+_3.54 hours.(Fig. 1). 2) Intestinal transit time before phototherapy was 13.63+_3.21 hours in 15 jaundiced newborns and it was 7.32+_2.76 hours after phototherapy (Fig. 1). 3) Intestinal transit time in 15 healthy newborns was 13.74+_5.14 hours(Fig. 1). A statistically accelerated intestinal transit was observed in jaundiced newborns treated with phototherapy. The increased rate of intestinal transit produced by phototherapy is probably due to the action of the phototherapy.
Carmine
;
Humans
;
Infant, Newborn*
;
Phototherapy*